Research On Signal Processing Technology Of Optical Fiber Gyroscope Unit

FOG is a kind of angular velocity sensor based on sagnec,Because of its advantages such as all solid state, compact structure, high precision measurement, Make it at home and abroad in the field of inertial measurement of a hot research direction.In recent years, Photoelectric device performance improvement at the same time as the price rises substantially, As well as the rapid development of digital signal processing technology, the fiber optic gyro engineering application gradually broaden and deepen.This article first introduced the system of fiber optic gyro application background, development process and working principle, As well as the domestic and foreign development status and trend of fiber optical gyroscope, Then it introduces the basic principle of interferometric fiber optic gyroscope, Including the working principle, classification, performance index and its signal processing method, Proposed one kind based on the three single axis fiber optic gyro integration gyro technology scheme, The signal processing circuit of the circuit design of hardware and software, And about the three axis optical fiber gyro error sources is studied, Completed in the practical application of the temperature field analysis and structure optimization analysis.Last, on three axis optical fiber gyro completed system calibration test and performance test, And the testing results are given and the main performance index, The experimental results show that the gyro integrated technical scheme design is reasonable, To achieve good measurement precision, It has very high practical value, For further engineering application to lay a solid foundation.In the end, complete the calibration test and table test, and results of the test are also given. The results show that good precision is reached. Above all, this system has very high practical value and is the foundation of high precision FOG using DSP design.